DE2217728A1 - IGNITION ARRANGEMENT FOR LIQUID BULLET FUELS - Google Patents

Description

Ignition arrangement for liquid projectile propellant l

The invention relates to an ignition arrangement for liquid projectile propellants.

It is already known that projectiles can be fired using the energy of the compressed gases produced during the conversion of liquid propellant charges. For this purpose, the "- llü.onigo propellant charge is poured into a charge space adjacent to the bottom of the inserted projectile. Ignition has so far mostly been done electrically, that is, a high voltage generated by a surge generator is applied to two electrodes protruding into the charge space. whereby the conversion of the liquid propellant into the gaseous reaction products is to be initiated by spark ignition.

This type of propellant charge ignition is so advantageous on the one hand is also because it is possible without the conventional, pyrotechnic ignition by means of primers, ignition screws, amplifiers and Transfer charges gets by, so it is on the other hand proper ignition depends on the generation of high-voltage ignition sparks. Apart from the fact that each for one electric propellant ignition equipped gun would have to be equipped with a generator generating the high voltages, it would also be difficult to to transfer the required high voltages to the ignition electrode in a functional and safe manner.

For this reason, it has already been proposed, as has long been known in the case of solid propellants, to accommodate the liquid propellant charge in the rear part of the projectile body and at its bottom a pyrotechnic .ignition in the form of a lighter ' nn <] .elno. ·; To be provided via ragungsziiiiders.

ORiGiNAL INSPECTED

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It is also known to introduce an ignition charge into the cargo space, which after ignition by means of a striking bolt causes the liquid propellant charges filled in the cargo space to ignite.

The invention lies - while avoiding the described Disadvantages - the object of the invention to improve an ignition arrangement for liquid projectile propellants so that they with the simplest structure and the least amount of additional work Aids works reliably even under extreme external conditions.

According to the invention, the object is achieved in that a pyrotechnic propellant charge igniter is arranged at the bottom of the projectile, the diameter of which is below the Projectile caliber is and is designed to the rear so that it is attached to the projectile with his extends full depth into the cargo space containing the propellant charge ..

According to a further feature of the invention is the propellant charge detonator from a capsule containing the ignition charge and the transfer charge made of the same combustible material as it is used for incombustible pods that is attached to the floor of the projectile. Another one again The feature of the invention is that the charge space concentrically enclosing the propellant charge detonator with a or several tangential feed lines for the liquid propellant is provided.

Finally, according to the invention, the diameter of the propellant charge space is dimensioned so that the attachment at the same time of a new bullet into the barrel and keeping the propellant liquid circulating during injection Printing is possible.

Further details of the invention are based on the .Drawing explained in more detail using an exemplary embodiment, and zwni * ".ci ^ t-n:

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ORiGiMAt IMSPECTED

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1 shows a twist-stabilized tracer projectile with a propellant charge detonator arranged on the ground, partially on average,

Fig. 2 shows the arrangement of the cargo space with attached Floor in longitudinal section and

Fig. 3 shows the cargo space with two tangential supply lines schematically.

The floor 1 is a completely normal twist stabilized. ■ Tracer bullet that launches the propellant charge detonator on its bottom 2 carries. The latter consists of a capsule 2a, in which the squib 2b, the booster and the transfer charge; 2c and 2d are housed. The capsule 2a can preferably consist of a suitable combustible material and flanged or a suitable adhesive or be connected to the floor la by other means. The projectile inserted into the weapon barrel 3 1 protrudes with the propellant charge detonator 2 into the ring-shaped one Cargo space 4 into it. The latter consists of a cylindrical Turning out the bottom piece 5, which in turn is screwed onto the tube sheet 3a.

The cargo space 4 is supplied with the liquid propellant 6 via one or more supply lines 7, which are arranged tangentially. According to the exemplary embodiment shown, two types of projectiles are separated from fed on both sides. The desired type of floor is usually called up using a selector switch, wherein the locking piece 8 is axially withdrawn so far that the corresponding projectile is guided into the feed channel, to then from the forward moving locking piece 8 to to be brought to the ready position.

So that the propellant charge detonator 2 with its thin-walled Kapre'J. 2a not directly with the face of the Verwichlußstücks 8 comes into contact and possibly is damaged or even destroyed, it is useful to have:

RHONE METAL

Closure piece 8 to push a sleeve 8a which is moved out of the breech block by the depth of the propellant charge detonator 2 and thereby grips the projectile base la. After the projectile 1 has been attached, the HiTl.rse On bin can be withdrawn to the face of the breech block β. During the attachment wii ⁿ d einn nenau dosiorto amount of liquid propellant 6 to the supply line! -! and from there it is pumped into the cargo space 4, with such a pressure that the liquid moves in a circular motion in the area of the inner wall of the cargo interior. 4 executes. The diameter of the load is dimensioned so that the supply of propellant 6 and ckii. Attachment of the projectile is possible at the same time.

After the loading and filling process has ended, means a trigger, not shown, of the firing pin 9 accommodated in the breech block H against the ignition pill 2b, thereby successively the booster and transfer charges 2c, 2d and finally the liquid propellant charge inflamed. . .

The force acting on the floor of the storey resulting from the gas pressure building up in cargo space 4 results, sptxt the floor 1 is now in motion.

In the context of the invention, some modifications are m / ·; LLoIi. Instead of mechanical ignition with a primer, an electrical ignition of the propellant charge can also occur, This has the advantage that only a comparatively low voltage and current intensity are sufficient for this purpose. Another The advantage is that the projectile, provided that the floor does not have any special holding means for a propellant charge detonator has, can also be fired from such guns in which cargo spaces for receiving crumples are provided.

BATH

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Claims (1)

W τ m. -M * "O ^ - 5K3SUMMBTA1JL" Düsseldorf :, -d'en _. 1? .. 4.1Γ - 7 Act e R ^ AS .. · .. "■ ... - - Patentansprüc he ' Ignition arrangement for liquid projectile propellants, characterized in that on the projectile floor (la) a pyrotechnic propellant charge igniter (2) is arranged, the diameter of which is below the Gesc.hoßkalibers and which is formed backwards in such a way is that when the projectile (l) is attached, he is in front of him Depth protrudes into the charge space (4) containing the propellant charge (6). Ignition arrangement according to Claim 1, characterized that the propellant charge detonator (2) of one of the squib (26), the booster charge (2c) and the Transfer charge (2d) receiving capsule (2a) made of combustible material is enclosed with the floor of the floor (la) is connected. Ignition arrangement according to Claims 1 and 2, characterized in that the igniter of the propellant (2) concentrically enclosing cargo space (4) is provided with one or more tangential supply lines (?) ■ for the liquid propellant (6). Ignition arrangement according to Claims 1 to 3, characterized in that the diameter of the charge space (4) is dimensioned so that a new projectile (1) can be inserted into the weapon barrel (3) and the liquid propellant (6) is kept circulating at the same time Filling under pressure is possible.